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HOMESERVICE MANUALSHYUNDAI2003SONATA LX, STANDARDREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXAUTOMATIC TRANSMISSION DTCS
2003 Hyundai Sonata LX, Standard

Automatic Transmission DTCS

2003 Hyundai Sonata LX, StandardSECTION Automatic Transmission DTCS
AUTOMATIC TRANSMISSION DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description
P0703 Stop Light Switch System
P0712 Oil Temperature Sensor System
P0713 Oil Temperature Sensor System
P0715 Input Shaft Speed Sensor System
P0720 Output Shaft Sensor System
P0725 Crankshaft Position Sensor System
P0731 1st Gear Incorrect Ratio
P0732 2nd Gear Incorrect Ratio
P0733 3rd Gear Incorrect Ratio
P0734 4th Gear Incorrect Ratio
P0736 Reverse Gear Incorrect Ratio
P0740 Torque Converter Clutch Solenoid System
P0743 Torque Converter Clutch Solenoid System
P0750 Solenoid Valve Systems
P0755 Solenoid Valve Systems
P0760 Solenoid Valve Systems
P0765 Solenoid Valve Systems
P1702 Throttle Position Sensor System
P1703 Throttle Position Sensor System
P1704 Throttle Position Sensor System
P1723 A/T Control Relay System
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.